Re: spice models

Mogliii <[email protected]> Tue, 06 Jul 2010 23:46:25 +0100
Newsgroups gmane.comp.gnu.gnucap.general
Message-ID <[email protected]>
OK, I got a bit closer to my aim.

I found this very helpful page: http://www.brorson.com/gEDA/SPICE/t1.html

Following this I made the following schematic:
http://users.ecs.soton.ac.uk/mets09r/test3.sch

I copied the spice model I found here [1] into a subckt file
http://users.ecs.soton.ac.uk/mets09r/LM317.subckt
and gave the LM317 the following attributes:
     device = LM317            (apparently not necessary)
     refdes = U1
     value = LM317             (exactly the same as the .SUBCKT LM317 1 
2 3 in spice file)
     file = LM317.subckt     (file with spice model is located in same 
directory as sch file)

Now when I load it in gspiceui the netlist finds the spicefile and 
netlists all. But when I do the simulation I get the following console 
output:

     Gnucap 0.35
     The Gnu Circuit Analysis Package
     Never trust any version less than 1.0
     Copyright 1982-2006, Albert Davis
     Gnucap comes with ABSOLUTELY NO WARRANTY
     This is free software, and you are welcome
     to redistribute it under certain conditions
     according to the GNU General Public License.
     See the file "COPYING" for details.
     **************************************************************
     U1 3 2 1 LM317
                    ^ ? need 1 more nodes
     @@#
     @@@incomplete:d_logic.cc:73:parse_spice
     U1 3 2 1 LM317
                    ^ ? need more nodes
     U1 3 2 1 LM317
                    ^ ? need and,nand,or,nor,xor,xnor,inv
     J1 1 3 4 JN
     ^ ? illegal type
     .MODEL JN NJF(BETA=1E-4 VTO=-7)
                  ^ ? not implemented
     model  is not a logic family (LOGIC)


The J1 seems to be the problem?

Now my questions:
     1) Do I have to rewrite the spice model to work with gnucap?
     2) gEDA includes the LM317 as symbol, but apparently no spice 
model? Is this correct?


I appreciate your help in advance


[1] 
http://groups.google.com/group/sci.electronics.cad/browse_frm/thread/fbf84f10d86a4d23/e66bf3354362d541?q=LM317+spice+model&rnum=3#e66bf3354362d541


On 07/05/2010 08:48 AM, Mogliii wrote:
> Since attachments seem not to be allowed on this mailinglist :(( 
> (compare my previous email) so I uploaded them.
>
> 1) the spicelib thing has been already resolved. Use scones instead of 
> make.
>
> 3) Schematics
> http://users.ecs.soton.ac.uk/mets09r/current-source.sch
>
> Explanation of circuit
> http://users.ecs.soton.ac.uk/mets09r/lm317.png
>
>
> Any help appreciated
>
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